Presta valves are skinny (6mm in diameter) needle-like internal tube valves you’ll come across on practically all street bikes and more expensive mountain bikes. The Schrader is the normal valve you find on vehicle tires and plenty of bicycle inner tubes. You could possibly set up a Presta valve on https://tripsbookmarks.com/story19779274/the-single-best-strategy-to-use-for-presta-addons